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HASINA NASIR M.D.
NPI 1982619334
Family Medicine in Hayward, CA

Active since July 31, 2006PECOS EnrolledAccepts Medicare Assignment
27303 SLEEPY HOLLOW AVE S, HAYWARD, CA 94545(510) 454-1000 Get Directions Write a Review

NPPES record last updated: October 27, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 27, 2023, Dec 9, 2021 (2 updates tracked since 2021).

About Hasina Nasir M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HASINA NASIR M.D. (NPI 1982619334) is an individual family medicine provider in Hayward, California, licensed in California (A92393) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1988).

NPPES Registry Identity

NPI1982619334
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameHASINA NASIRCredential: M.D.
Location Address27303 SLEEPY HOLLOW AVE SHayward, CA 94545-4203
Mailing Address27303 Sleepy Hollow Ave SHayward, CA 94545-4203 · (510) 454-1000
Phone(510) 454-1000
Sole ProprietorNo
Medical School CMSOtherGraduated 1988
Enumeration DateJuly 31, 2006
Last NPPES UpdateOctober 27, 20232 updates tracked since enumeration
✔ NPI 1982619334 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A92393
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
27303 SLEEPY HOLLOW AVE S, Hayward, CA 94545
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Other Identifiers 1

Medicaid00A923930CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Hasina Nasir M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4688670219
PECOS Enrollment IDI20061004000589
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Hasina Nasir reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Washington Township Medical Foundation
8.1 mi
Urgent Care
2682 MOWRY AVE
Fremont, CA 94538
  • Reassigned Medicare billing, California enrollment
  • 121 clinicians in this Medicare group
NPI 1669360681 (510) 248-1000
Permanente Medical Group Inc
12 mi
Internal Medicine
1190 VETERANS BLVD
Redwood City, CA 94063
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1639252604 (650) 299-2000
County Of Santa Clara
14 mi
Clinic/Center
2741 MIDDLEFIELD RD
Palo Alto, CA 94306
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1043354020 (California), NPI 1629301346 (California)
  • 2,460 clinicians in this Medicare group
NPI 1285228080 (408) 885-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94545 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GEORGE LAI M.D.
Internal Medicine (Nephrology)
27303 SLEEPY HOLLOW AVE S
HAYWARD, CA 94545
Alameda County (510) 454-1000
ELAINE K ONG M.D.
Pediatrics
27303 SLEEPY HOLLOW AVE S
HAYWARD, CA 94545
Alameda County (510) 454-1000
DAYNA TAI
Pharmacist
27303 SLEEPY HOLLOW AVE S
HAYWARD, CA 94545
Alameda County (510) 784-4589
RANGASHREE VARADARAJAN MD
Internal Medicine (Nephrology)
27303 SLEEPY HOLLOW AVE S
HAYWARD, CA 94545
Alameda County (510) 784-2769
ARMANDO LASARO PLATA M.D.
Urology
27303 SLEEPY HOLLOW AVE S
HAYWARD, CA 94545
Alameda County (510) 454-1000
LUCY OANH PHUONG M.D.
Pediatrics
27303 SLEEPY HOLLOW AVE S
HAYWARD, CA 94545
Alameda County (510) 454-1000
NATALIE CAC
Allergy & Immunology
27303 SLEEPY HOLLOW AVE S
HAYWARD, CA 94545
Alameda County (510) 784-6225
OLGA LEMBERG MD
Pediatrics
27303 SLEEPY HOLLOW AVE S
HAYWARD, CA 94545
Alameda County (510) 752-1000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Hasina Nasir's NPI number?

The NPI number for Hasina Nasir is 1982619334. It was assigned to this individual provider in the NPPES registry on July 31, 2006.

Where is Hasina Nasir located?

Hasina Nasir practices at 27303 Sleepy Hollow Ave S, Hayward, CA 94545. The listed phone number is (510) 454-1000.

What is Hasina Nasir's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Hasina Nasir enrolled in Medicare?

Yes. Hasina Nasir is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Hasina Nasir's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hasina Nasir reassigns Medicare benefits to 3 organizations: Washington Township Medical Foundation (Fremont, CA), Permanente Medical Group Inc (Redwood City, CA) and County Of Santa Clara (Palo Alto, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Hasina Nasir's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Hasina Nasir was last updated on October 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.